WO2017146917A1 - Fraise dentaire - Google Patents

Fraise dentaire Download PDF

Info

Publication number
WO2017146917A1
WO2017146917A1 PCT/US2017/017401 US2017017401W WO2017146917A1 WO 2017146917 A1 WO2017146917 A1 WO 2017146917A1 US 2017017401 W US2017017401 W US 2017017401W WO 2017146917 A1 WO2017146917 A1 WO 2017146917A1
Authority
WO
WIPO (PCT)
Prior art keywords
frustum
dental bur
tip
shaped portion
cutting section
Prior art date
Application number
PCT/US2017/017401
Other languages
English (en)
Inventor
Douglas Bruce SMAIL
Original Assignee
Smail Douglas Bruce
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Smail Douglas Bruce filed Critical Smail Douglas Bruce
Publication of WO2017146917A1 publication Critical patent/WO2017146917A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/02—Tooth drilling or cutting instruments; Instruments acting like a sandblast machine

Definitions

  • the present invention relates to a surgical bone reduction bur and, in particular, to a dental bur used to prepare the site of a bone surface prior to dental implant placement.
  • Dental implant surgery often requires the use of a surgical drill to prepare the topography of the jaw bone site prior to the placement of the dental implant.
  • the gingiva are incised and pushed back to expose the jaw bone crest below.
  • the surgical drill is then used to flatten the bone crest such that the bone no longer has ridges or irregularities that could otherwise result in implant misplacement and/or cleaning problems.
  • U.S. Patent Application Publication No. 2007/0093841 discloses a surgical drill bit having a blunted and smooth tip that provides protection to nerves, tissue, and dura.
  • this drill bit which was designed to remove bone within a spine, has a shape that would not result in flattening of the mandibular or maxillary bones nor would it provide the proper protection necessary for dental implant surgery.
  • the present invention is a dental bur comprising (i) a proximal shank, (ii) an intermediate cutting section connected to the shank, and (iii) a distal tip connected to the cutting section and having a smooth, rounded portion.
  • the cutting section comprises (a) a frustum- shaped portion having a larger-diameter end and a smaller-diameter end and (b) a curved portion that provides a transition between (i) the smaller-diameter end of the frustum-shaped portion and (ii) the tip, wherein the outer surface of the frustum-shaped portion and the outer surface of the curved portion are both sufficiently abrasive to remove bone tissue.
  • the outer surface of the frustum-shaped portion may comprise a first set of helical flutes that define bone-cutting edges, and the outer surface of the curved portion may comprise a set of non-helical flutes that define additional bone- cutting edges.
  • the outer surface of the frustum-shaped portion further may comprise a second set of helical flutes that define additional bone-cutting edges and intersect the first set of helical flutes.
  • the shank may have a cylindrical shape whose diameter is smaller than the diameter of the larger-diameter end of the frustum-shaped portion of the cutting section.
  • the rounded portion of the tip may have a shape of a spherical cap.
  • the tip may further comprise a truncated cylindrical portion connected between the rounded portion of the tip and the curved portion of the cutting section.
  • the cutting section may further comprise a cylindrical portion connected to the larger-diameter end of the frustum- shaped portion, wherein the outer surface of the cylindrical portion is sufficiently abrasive to remove bone tissue.
  • the outer surface of the cylindrical portion may comprise a first set of helical flutes that define bone-cutting edges.
  • the outer surface of the cylindrical portion may further comprise a second set of helical flutes that define additional bone-cutting edges and intersect the first set of helical flutes.
  • the outer surface of the frustum-shaped portion and the outer surface of the curved portion may both be coated with the grit.
  • the grit may comprise diamond particles.
  • the cutting section may further comprise a cylindrical portion connected to the larger-diameter end of the frustum- shaped portion, wherein the outer surface of the cylindrical portion is coated with the grit.
  • FIG. 1A is an isometric view of a dental bur according to one embodiment of the present disclosure
  • FIG. IB is a side view of the dental bur of FIG. 1 A;
  • FIG. 1C is a cross-sectional view of the dental bur of FIGs. 1A-1B taken along line A-A of FIG. IB;
  • FIG. 2A is an isometric view of a dental bur according to another embodiment of the present disclosure.
  • FIG. 2B is a side view of the dental bur of FIG. 2A;
  • FIG. 2C is a cross-sectional view of the dental bur of FIGs. 2A-2B taken along line A-A of FIG. 2B; and [0026] FIG. 3 is a cross-sectional side view of a dental bur according to yet another embodiment of the present disclosure.
  • FIG. 1A is an isometric view of a dental bur 100 according to one embodiment of the present disclosure.
  • FIG. IB is a side view of the dental bur 100
  • FIG. 1C is a cross- sectional view of the dental bur 100 taken along line A- A of FIG. IB.
  • the dental bur 100 has a proximal shank 110, an intermediate cutting section 120, and a distal tip 130.
  • the shank 110 which has a solid (i.e., not hollow), cylindrical shape, is designed to be inserted into and retained within the chuck of a drill (not shown) that rotates the dental bur 100 about its longitudinal axis 102.
  • the cutting section 120 has (i) a solid, frustum-shaped portion 122 that abuts the shank 110 and (ii) a solid, curved portion 124 that provides a transition between the frustum- shaped portion 122 and the tip 130.
  • the surface of the frustum-shaped portion 122 has two sets of helical flutes 126 - one set running clockwise and the other counterclockwise - that intersect one another and extend along the frustum-shaped portion 122 to the curved portion 124, where non-helical flutes 127 extend longitudinally and radially, as shown in FIGs. 1A and 1C.
  • the helical flutes 126 and non-helical flutes 127 both provide cutting edges that are designed to engage with and remove bone tissue.
  • the frustum- shaped portion 122 has a larger-diameter end 128 and a smaller-diameter end 129, where (i) the cutting section 120 is connected to the shank 110 at the larger-diameter end 128 of the frustum-shaped portion 122 and (ii) the curved portion 124 provides a transition between (i) the smaller-diameter end 129 of the frustum- shaped portion 122 and (ii) the tip 130.
  • the tip 130 comprises a solid, truncated cylindrical portion 132 and a solid, rounded portion 134, the surfaces of both of which being smooth (e.g., no flutes or grit) and therefore non-abrasive.
  • the radius of curvature of the rounded portion 134 is sufficiently large such that the rounded portion 134 has the shape of a spherical cap or dome.
  • FIG. 1C shows the solid interior of the frustum- shaped portion 122 of the cutting section 120 with its helical flutes 126 as well as the curved portion 124 of the cutting section 120 with its non-helical flutes 127 and the edge of the cylindrical portion 132 of the tip 130.
  • FIG. 2A is an isometric view of a dental bur 200 according to another
  • FIG. 2B is a side view of the dental bur 200
  • FIG. 2C is a cross-sectional view of the dental bur 200 taken along line A-A of FIG. 2B.
  • the dental bur 200 is analogous to the dental bur 100 of FIGs. 1 A-1C with analogous features having similar labels.
  • the main difference is that the dental bur 200 has a single set of non-intersecting helical flutes 226 rather than two intersecting sets of flutes 126 as in the dental bur 100, where the pitch (i.e., the distance between adjacent flutes) of the flutes 226 and 227 in the dental bur 200 is smaller than the pitch of the flutes 126 and 127 in the dental bur 100.
  • Dental burs of the present disclosure are primarily if not entirely made of a suitable metal, such as tungsten carbide for the tip with a surgical stainless steel shank, and may be manufactured using suitable techniques for manufacturing drill bits, such as forging and milling.
  • a suitable metal such as tungsten carbide for the tip with a surgical stainless steel shank
  • suitable techniques for manufacturing drill bits such as forging and milling.
  • the cutting section of a dental bur of the disclosure may have an abrasive surface, such as a surface coated with diamond particles or other types of grit that can wear down bone tissue.
  • Dental burs of the present disclosure are suited for reducing and flattening the bone tissue of the maxillary and mandibular bones for surgical dental procedures such as the All-on-4 dental implant procedure.
  • the overall straight (i.e., ignoring the flutes) outer surface of the frustum-shaped portion 122/222 of the cutting section 120/220 enables a dental surgeon to achieve a flat crestal bone contour that is desired for preparing a dental implant site.
  • the rounded, smooth portion 134/234 of the tip 130/230 displaces the soft gingiva tissue away from the cutting section 120/220, thereby reducing the amount of excessive damage.
  • the curved portion 124/224 of the cutting section 120/220 provides a concave cutting surface that is designed to fit the corner of the crest and the inside wall of the jaw bone. This allows the dental bur 100/200 to move along the bony crest of the jaw, while reducing the desired bone tissue without unwanted soft tissue damage. This allows for efficient movability of the drill around the jaw from posterior to anterior and from side to side.
  • FIG. 3 is a side view of a dental bur 300 according to yet another embodiment of the present disclosure.
  • the dental bur 300 can be implemented with either two intersecting sets of flutes as in the dental bur 100 or a single set of non-intersecting flutes as in the dental bur 200.
  • the dental bur 300 has a cylindrical shank 310, a cutting section 320, and a rounded tip 230.
  • the cutting section 320 in addition to having a frustum-shaped portion 322 and a curved portion 324, also has a cylindrical portion 321, which also has intersecting or non-intersecting flutes.
  • the dental bur 300 has the following dimensions:
  • Diameter of large-diameter end 328 of frustum-shaped portion 322 of cutting section 320 8 mm;
  • Diameter of cylindrical portion 332 of tip 330 8 mm;
  • the diameter of the shank 310 may be equal to the diameter of the cylindrical portion 321 of the cutting section 320.
  • the tip does not have a cylindrical portion 332.
  • the rounded portion 334 forms the entire tip 330.
  • each may be used to refer to one or more specified characteristics of a plurality of previously recited elements or steps.
  • the open-ended term “comprising” the recitation of the term “each” does not exclude additional, unrecited elements or steps.
  • an apparatus may have additional, unrecited elements and a method may have additional, unrecited steps, where the additional, unrecited elements or steps do not have the one or more specified characteristics.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

Dans un mode de réalisation, la présente invention concerne une fraise dentaire qui comprend une tige proximale, une section de coupe intermédiaire, et une pointe distale lisse, arrondie. La section de coupe comprend (i) une partie de forme tronconique raccordée à son extrémité de grand diamètre à la tige et (ii) une partie incurvée qui constitue une transition entre l'extrémité de petit diamètre de la partie de forme tronconique et la pointe arrondie, où les surfaces externes de la partie de forme tronconique et la partie incurvée sont toutes deux suffisamment abrasives pour éliminer un tissu osseux en raison de la présence de sable et/ou cannelures superficiels qui constituent des bords de coupe d'os. La fraise dentaire réduite et aplatit le tissu osseux des os maxillaire et mandibulaire pour des implants dentaires chirurgicaux sans endommager de façon indésirable le tissu mou.
PCT/US2017/017401 2016-02-26 2017-02-10 Fraise dentaire WO2017146917A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/054,595 2016-02-26
US15/054,595 US10238469B2 (en) 2016-02-26 2016-02-26 Bone reduction bur

Publications (1)

Publication Number Publication Date
WO2017146917A1 true WO2017146917A1 (fr) 2017-08-31

Family

ID=59679157

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/017401 WO2017146917A1 (fr) 2016-02-26 2017-02-10 Fraise dentaire

Country Status (2)

Country Link
US (1) US10238469B2 (fr)
WO (1) WO2017146917A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101717084B1 (ko) * 2015-08-31 2017-03-20 주식회사 제노스 치아 임플란트 식립용 드릴링 드라이버
US11471248B2 (en) * 2018-07-19 2022-10-18 Sharareh Tajbakhsh Interproximal polishing bur
GB2586977B (en) * 2019-09-10 2023-06-14 Souber Tools Ltd A burr
JP6829360B1 (ja) * 2019-12-26 2021-02-10 合同会社Ｗｓｐｔジャパン 切削・研磨用バー
US20240115351A1 (en) * 2020-11-12 2024-04-11 Sang-choon Cho Alveolar Ridge Splitting Technique for Predictable Horizontat Ridge Augmentation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684346A (en) * 1985-07-22 1987-08-04 Howard Martin Endodontic access bur with extended diamond coat and method for using
US6179616B1 (en) * 1998-05-27 2001-01-30 Gebr. Brasseler Gmbh & Co. Kg Dental drill
US6565356B2 (en) * 2000-09-28 2003-05-20 Gc Corporation Dental Diamond bur
US7347692B2 (en) * 2002-10-18 2008-03-25 Patrick L. Roetzer Dental bur
US20090162812A1 (en) * 2007-12-20 2009-06-25 Bhr Project Llc Dental composite shaping burs
WO2011098917A1 (fr) * 2010-02-11 2011-08-18 Sybron Canada Lp Fraise et son procédé de fabrication

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US843273A (en) * 1905-03-29 1907-02-05 Willy Homann Dental bur and excavator.
USD269040S (en) 1980-08-18 1983-05-17 Deemer Milton G Dental bur
US5931841A (en) * 1998-04-24 1999-08-03 Stryker Technologies Corporation Combination broacher-reamer for use in orthopaedic surgery
US7094055B2 (en) * 2001-05-30 2006-08-22 Steven Senia Endodontic reamer and a method for manufacturing endodontic reamers and files
US8784421B2 (en) 2004-03-03 2014-07-22 Boston Scientific Scimed, Inc. Apparatus and methods for removing vertebral bone and disc tissue
JP2006141439A (ja) 2004-11-16 2006-06-08 Akiyoshi Funato 歯科用バー及びそれを用いた穿孔方法
GB2430396A (en) 2005-09-23 2007-03-28 Thomas Hoogland A surgical drill
US20070202461A1 (en) * 2006-02-28 2007-08-30 Shiyu Wang Dental bur with a smooth front
US20090053674A1 (en) * 2007-08-22 2009-02-26 Gebr. Brasseler Gmbh & Co. Kg Dental drill

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684346A (en) * 1985-07-22 1987-08-04 Howard Martin Endodontic access bur with extended diamond coat and method for using
US6179616B1 (en) * 1998-05-27 2001-01-30 Gebr. Brasseler Gmbh & Co. Kg Dental drill
US6565356B2 (en) * 2000-09-28 2003-05-20 Gc Corporation Dental Diamond bur
US7347692B2 (en) * 2002-10-18 2008-03-25 Patrick L. Roetzer Dental bur
US20090162812A1 (en) * 2007-12-20 2009-06-25 Bhr Project Llc Dental composite shaping burs
WO2011098917A1 (fr) * 2010-02-11 2011-08-18 Sybron Canada Lp Fraise et son procédé de fabrication

Also Published As

Publication number Publication date
US20170245958A1 (en) 2017-08-31
US10238469B2 (en) 2019-03-26

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